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Tunnel was being driven six miles through the 
Rockies. Masses of earth and rock, sagging 
under the Mountain's weight— pressures up 
to ten tons per square foot — had to be held in 
check. Ordinary concrete hardened too slowly 
to take the crushing loads. Concrete that 
provided dependable high early strength was 
urgently needed. 

Years before, anticipating the needs of con- 
struction progress, Lone Star Cement tech- 
nicians began developing a true high earls 
strength Portland cement. Thus, 'Incur 1 was 
available when needed. 4 Incor concrete held 
up the mountain . . . has been holding it up 
ever since . . . blocking off ground waters . . 
giving typical *Incor service. Two decades . . 
not a dollar for maintenance. 

Mr. Glen Turner, Division Engineer of Denver & Rio 
Grande's Moffat Division, shown at left, making a 
condition survey, writes: " 'Incor' concrete placed in the 
Tunnel 20 years ago is in excellent condition. Despite 
the tremendous pressures to which these sections ore 
subject, there is absolutely no evidence of structural 

failure or disintegration.' 7 





The technique of concrete construction has been greatly 
advanced by reducing the length of time it takes cement to 
produce service strength. That is why a new era in construc- 
tion began, in 1927, with the introduction of Tncor\ America's 
first high early strength Portland cement. One-day curing 
with Tncor 1 accomplishes what normally required a week or 
longer. By changing weeks into days, Tncor' made concrete a 
ready-to-use, year-around construction material. 

At first, Incor' filled a vacuum of need on rush jobs, where 

speed was paramount. But time is a key factor in costs, and 

designers and builders quickly found that time saved with 

Incor' usually meant money saved, too. Earlier use at less cost 

became a practical reality. 

High early strength, earlier use, reduced first cost — these 
are primary considerations. But so, too, are ultimate strength, 
long-time durability and low upkeep cost. Both sides of the 
coin are the first concern of an organization in which quality, 
and the performance which it reflects, is nothing short of a 
business religion. 

Quality-mindedness made Tncor possible in the first place 
through years of research in the chemical structure of Port- 
land cement ... it has kept Tncor' and the other Lone Star 
Cements constantly abreast of advancing construction de- 
mands . . . and it also explains the present publication. 

For here is a cross-section of Tncor' performance, as dis- 
closed by a Condition Survey of projects up to twenty years 
old, covering a wide range of concrete work and exposure con- 
ditions. This record of initial and long-time values is doubly 
significant today — to Owners, Designers and Builders alike. 
Because the higher the cost of construction, the greater the 
Tncor' saving, at the outset and through the years, 




Boston Post Road, New Rochelle, N. Y., paved with 'Incor' in 1 928 — heaviest traffic, no maintenance, today's condition excellent 

The Record in Highway Service 

Twenty years ago extra de- 
tour mileage and lost time cost 
motorists huge sums. Paving 
with 'Incor' and opening con- 
crete after 24 hours helped solve 
the problem. Roads were kept 
open — motorists saved time 
money and inconvenience. 

In 1928, 'Incor' concrete was 
placed on Boston Post Road at 
Main and Echo Avenues inter- 
section. New Rochelle, N. Y. 
Traffic count, then 20,000 cars 
and trucks a day, is 50,000 to- 
day. A continuous stream of 
trucks, weighing up to 30 tons, 
punishes this concrete, day and 
night. "No maintenance . . . 
concrete good for years to come," 
reads Condition Report. 

When Boston Post Road was repaved through Larch 
mont, N. Y., merchants insisted on the use of Incor' to 
prevent business loss. Here, too, 'Incor' concrete is in 
first-class condition today, after 16 years of just about 
the heaviest pounding any paving ever took. 

Boston Post Road, Larchmont, N. Y., as it looks today. 

Back in 1927, to avoid delay- 
ing cement shipments. Manhat 
tan Road intersection near the 
Lone Star Cement mill at Lime- 
dale Ind.. was repaved with 
Incor and opened to traffic in 
40 hours, hen a fleet of solid- 
tired Mack trucks carrying 2100 
barrels of cement, passed over 
the new concrete. Today, after 
twenty years' hard service, this 
concrete is incor'-sound — 
staunch as the day it was 

What about ultimate strength 
Cores drilled in July, 1947, from 
this oldest 'Incor' highway 
tested by Pittsburgh Testing 
Laboratory, show 20- year 
strength values as noted on 
photo at right. 

So runs the record on the 
nation's principal highways — a 
record of time and money saved. 
at the outset and through the 


Manhattan Road intersection, near Limeda e Ina after 20 years' hard ser 

Lincoln Highway, between Pittsburgh and Johnstown, Pa., concreted in 1 929— condition today, excellent 

Bottleneck Highway, near Harrisburg, Pa., concreted with 'Incor' in 1 928— condition today, first-class 

In sul) ir ing weather, win- 
1 of 1 Pennsylvania wid- 

ened Bot neck Highwa; on 
1 Susquehan r's west 

bank, near Harrisburg. Only 
highway into that Cit; rom the 

a dc <ur *s impo bit. 
I com was optr. i in 

hours, mair ining half 
ti through the 10b TraT 

u >00 cars truck 

in ji about tv< kind 
of u — concn n 

lent ondition. 

Blue Mound Rood, main Milwoukee arte co es 
heavy traffic. Gler Rood intersection, paved 

h Incor 1928, has required no maintenonc 

— Excellent te ol for Incc says a gh- 

woy Official. 

Blue Mound Rood intersection, near Milwaukee. 

Structures as well as paving, 
the record is the same. Relocat- 
ing Lincoln Highway east of 
Pittsburgh required 600,000 cu. 
yd. of fill, 120 ft. high, in a 
narrow valley. 'Incor' enabled 
the contractor to start the fill 
two days after concreting be- 
gan, advancing completion by 
two months. That was in 1930 

photo shows this project in 
excellent condition today. 

From New England to Texas, 
everywhere east of the Rockies, 
the record in highway service 
runs true to form — important 
economies at the outset, equally 
significant economies through 
dependable long-time service — 
a pattern repeated again and 
again in all types of work. 

Highway tunnel, east of Pittsburgh, concreted with 'Incor' in 1930. 

U.S. No. 1, between 
Philadelphia and Lans- 
downe, Pa., repaved 
with 'Incor' in 1930-no 
maintenance, good for 
years to come. 

'Incor' paving at critical 
points on U.S. No. 87, 
Potter County, Texas- 
placed in 1932, still go- 
ing strong today. 

Mo ' r 

WoltKom, Mc Incor povmg. ploced m 1928 o* it look* fodoy 

20 Years on Main Street, U.S.A 

i s 

Mord, Mem 


Inco* n 1929 

Close a stint for r< paving 
and pro: hm lust that n 

ant! tu vc i regain That it 
w) In r' has 1>< tm tl» 
trd in repaying America 9 ! 

Main Street! — Ii 

la J toda) ' an iea i uatonM 

t • 

M U!C 111 St Q!Cd lu- 

ll 192 I ic pave tc it 

Mb n S Walthain — n 

business I I is 

i — 1 % 9 trucl 

a da. Si IfltCtf 'ju Good 

on tx ;ir- a I way 

eon has ?aken 

p p cr an < 4 e 

1 Con on Su 


- Mot* Sir*- M • 

&•« #ortmg oad flopping- pc ♦•*• 

To tie up Canal Street, New 
Orleans, at Mardi Gras time 
would be like barricading New 
York's Broadway on New Year's 
Eve. In December, 1929, New 
Orleans repaved Canal Street 
from Claiborne Street to the 
River — 18 blocks of paving, 
with 21 -ft. sidewalks. Merchants 
demanded quick action. Ordi- 
nary Portland cement meant 
several months of demoralized 
business, with traffic re-routed 
— and Mardi Gras only a few 

weeks away. 

'Incor' was used throughout. 
Paved a section at a time, 
opened the next day, concrete 
work went forward rapidly. 
Each block was finished 11 days 
sooner. 4 Incor' was ready for 
Mardi Gras. Merchants stated 
'Incor' saved them at least 
$200,000 net profit on sales that 
would otherwise have been lost. 

After nearly 20 years, taxpay- 
ers share merchants* satisfaction, 
for the concrete is in excellent 
condition — no maintenance! 

Canal Street, New Orleans — paved with 'Incor' in 1929 

Traffic is heavy on U.S. No. 40 in Kansas 
City, Kansas. Paved with 'Incor' in 1928, 
concrete is sound as the day it was placed, 

over 19 years ago. 


Ossining, N. Y. Station Plaza paving as it looks today, after over 19 years' hard service 

Night temperatures were low, 
back in October, 1928, when 
New York Central Railroad's 
station plaza at Ossining, N. Y., 
was repaved with 'Incor'. Pav- 
ing was laid in 70 sections, each 
section opened to traffic in 24 
hours. A huge electric trans- 
former was trucked over 36- 
hour-old 'Incor 1 slab without 
damage to the freshly-place 
concrete. The entire job was 
completed in 10 days — 30 days 
soonc t than possible with ordi- 
nary concrete . 

In spit of heavy traffic, the 

Incor' concrete is as good as on 
opining day. And that, in 
nuts! j1. is the service record of 

Incur", under pitiless v. it an 

gruelling posure, in highwa 

rvic< the country over. 

Main Street, Kilgore, Texas, paved with 'incor' in 1931— good cN new today 


Bridges Many a Gap 

Twenty years 1 experience 
shows that somewhere in every 
bridge-construction project, l In- 
cor' saves time and money. 
George Westinghouse Bridge, 5- 
span concrete structure, carries 
the Lincoln Highway 1500 ft. 
across Turtle Creek Valley, near 
Pittsburgh, Pa.; the 460-ft. cen- 
ter span is one of America's 
longest concrete arches. Used in 
key sections of all arch ribs, 
w Incor' gained sufficient strength 
in 12 hours to withstand stresses 
due to effects of temperature on 
steel false-work. 

Incor' saved 10 days on each 
of 10 arch ribs, 100 days in all. 
$700 of the contractor's daily 
fixed payroll was non-produc- 
tive while arch-rib concrete 
cured. So 'Incor' saved $70,000 
when the bridge was built in 

Recent inspection shows con- 
crete to be in first-class condi- 
tion — typical of 'Incor' perform- 
ance on many of the nation's 
principal bridges. 

George Westinghouse Bridge, Pittsburgh, Pa. 

Wabash Avenue Bridge, Chicago. 

'Incor' with light-weight ag- 
gregate was used in pre-cast 
sidewalk and roadway slabs for 
double-leaf Bascule bridge over 
Chicago River at Wabash Ave. 
in 1929. Forms were used twice 
a day, saving 50%; concrete 
slabs piled by crane 8 to 20 
hours after casting; 3400-lb. 
compressive strength in one day. 

Concrete has to be dense and 
watertight — moisture absorption 
would affect balance between 
leaves and counterweights. 
Nearly 20 years' exposure has 
had no effect on the span's deli- 
cate balance — Bridge Engineers 
say, "Maintenance-free service 
has saved the City real money." 

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Brindley Creek Bridge, Cullman, Ala., built in 1928. 'Incor' saved 29 days and $1800, "Condition first-class," reads 1947 Report. 

Arlington Memorial Bridge, Washington, D. C, 'Incor 1 used in key sections— arches self-supporting 24 hours after last pour. 


Loading dock at Indianapolis Motor Terminal as it looks today, after 20 years' service 

Heavy-Duty Concrete in Commerce and Industry 

Driveways at Central Cold Storage Warehouse, Chicago, concreted in 1929. 

Loading dock at Indiana 
Motor Freight Terminal, In- 
dianapolis, was the first 4 Incor' 
heavy-duty concrete installa- 
tion. In July, 1927, the old dock 
was rebuilt over a week-end, 
without tying up traffic. After 
over 20 years' hardest service, 
'Incor' concrete going as strong 
as ever — no maintenance, except 
where steel bumper plates be- 
came dislodged. 

Two hundred heavy trucks a 
day "back and fill" over the 
eight driveways at Central Cold 
Storage Warehouse, Clark Street, 
Chicago, concreted with l Incor' 
in 1929. Condition Report reads: 
"No cracking, spalling or wear." 
'Incor' has outlasted driveways 
at other warehouses, causing 
Central's superintendent to use 
Incor' in floors, too. 

Boston South Station's steel- 
and-glass roof was replaced in 
1929 with individual umbrella- 
type platforms, rebuilt one at a 
time with 'Incor'. Concrete 
placed one day was in use the 
next — avoiding weeks of traffic 
disruption. Steel-tired baggage 
trucks grind these concrete plat- 
forms day and night, millions of 
passengers tread the surface 

' Incor' concrete is as good as 
the day it was placed, nearly 
twenty years ago. Real heavy- 
duty service! 

Used in 13 platforms and eight ramps at Boston's South 
Station, 'Incor' concrete has required practically no main- 

tenance in nearly 20 years' service. 

Heavy-duty concrete floor 
in A. B. & C. R.R. Freight 
Depot, Atlanta, surfaced 
with 'Incor' in 1930, is good 
as new today— outperform- 
ing other adjacent topping 
concreted at the same time. 


Missot Pacific Tunnt Gray Summit, Mo., cone >ed with 'Incor' in 1929 

In Railroad Service— Initial and Long-Range Economy 

o Roitrood 
voved 3 *wk% «n ape 

Uvea in bridge-dec^ con Incor' 

Piftobu'g* mo r n« 927 E»g r 

¥#c 20 yecY tec no 

M ii i Pacifu Tuimx 1 at 
/ Bummit, Mo., built in 
1^2^ is pan of double-track 

Lit fT bctw< en St Louis and 

Jc fl n C»tj Tuiirn ] mpl< 


iet< rmin< d tin d 

the cut off uld be pi in 

I ig h , on' f 

forms did ( j< th< singl* 
form w v % i 

ward l^ s af pi* 

ly fo1 
]< Ming rat ns — w ks 

u sa I. minim ng 


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• When this Erie Railroad over- 
pass, at Huntington, Indiana, 
was built in 1931, 'Incor' ad- 
vanced completion by three 
weeks. Concrete carried heavy 
traffic in 24 to 36 hours, reduc- 
ing slow-order movement to a 
minimum. This concrete is ex- 
posed to all kinds of weather — 

exposure conditions are severe. 
Railroad Engineers' 1947 report 
states: "Concrete as good as the 
day it was finished, over 16 
years ago." 

This is typical 'Incor' per- 
formance in railroad service and 
typical also of the service ' Incor* 
is rendering to industry gener- 
ally — through initial and long- 
time economies, resulting from 
dependable high early and high 
ultimate strengths. 


Erie Railroad overpass, Huntington, Indiana 

'Incor' concrete track and 
driveway paving for Mis- 
souri Pacific Railroad, Kan- 
sas City, Mo., placed in 
1929, saved 18 days. Some 
of the team-track paving 
was removed for later flood 

wan construction— it was a 
tough job to rip out the 
'Incor' concrete. After near- 
ly 19 years' service, the re- 
maining 'Incor' concrete 
"looks like it would last 
forever," reads Condition 



Main Interlocking of Jack- 
sonville Terminal's Myrtle 
Avenue plant is directly 
over this underpass, rebuilt 
under service in 1930, 300 
train movements daily. 
Tracks were removed from 
bridge-deck in pairs; I- 
beams thoroughly cleaned 
and encased in concrete; 
decks concreted with 'In- 
cor'; slabs under traffic in 
48 hours. "Not a break or 
haircrack visible," says 
1947 Condition Report. 



Stamford, Conn. Yacht Club's salt-water pool, built with 'lncor y in 1930— giving excellent service today. 


Watertight and Exposed 
Structures — Long-Time 

By curing thoroughly in the short time 
concrete can be kept wet on most jobs, 'Incor' 
helps assure durability and density essential 
in watertight and exposed structures. Con- 
creted with 'Ineor' in 1930, Stamford, Conn. 
Yacht Club's salt-water swimming pool is 
giving excellent service today. 

So runs the record in watertight work. 
Bone-dry utilities tunnel at Smith Paper Co., 
Lee, Mass., adjoins flume for 2 50 hp. water 
wheel. Concreted with 'Incor' in 1931 — earlier 
completion saved $500 — perfect watertight 
service . no mainte nance. 

Utilities tunnel at Lee, Mass. paper mill— concreted 

with 'Incor' in 1931 

In 1928, 'Incor' was used for 
dock piling and deck slabs in 
Tampa, Fla., Union Terminal. 
Piles, lifted 3 days after cast- 
ing, were driven to refusal 2 4 
hours later. Dock work followed 
immediately, with forms stripped 
in one-third the usual time. Job 
completed 21 days sooner, sav- 
ing $10,000 in overhead and 


Engineers of Gulf Florida Com- 
pany, Inc., present owners, report 
'Incor' piling in excellent condi- 
tion today — no damage from 
sea-water action or sea growths. 
Ten years ago, railroad tracks 
on the pier had to be raised, 
and part of the 'Incor' deck was 
torn out. Company Engineers 
say, "The 20-year-old 4 Incor' 
concrete is in better condition 
than the newer work." 

Mill Rock Reservoir, New Haven, Conn., 
8-million-gal. capacity, built with 'Incor' 
in 1931. Exposure conditions are rugged 
—repeated freezing and thawing ... 12- 
ft. daily rise and fall of water. Concrete 
is watertight . , . doing its job we 
good for years to come. 

Tampa, Fla. wharf, concreted with 'Incor' in 1 928-excellent condition today. 




./ 7 


.. . 



Mill Rock Reservoir, New Haven, Conn., built with 'Incor 1 in 1931 


Mu pol Auditorium. Nr* Orleonv built with Incor in 1929 

Building Construction — Earlier Use at Less Cost 

• )' <»i ms i a principal In ' 

i cock m u cotts — mor< t« 

day tl e \( r Tht <jui< k< i 

OS CM l>< i' usc<i th« U w« 
•nnt arc m W ith In. 

at mti filled nnt da 
,>P« d tl ;< : I Only hall at 

i.'iuy forms in oet I — job 

tfl is impro\ I all a) k 

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Built in J I Mut ;il 

ditonum in N Oi leant Wil 
A Uh lirtt bill! rigs to lie 

td throughout witli 1 
J < H Cei I h 

1 6ML on rmt - mad* 


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il>U hightpeed com | 

today — atturar age tt 

and wt a' 1 

In I we* I - 

icet tra as • g*~ 

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Field House, Louisiana State University, Baton Rouge-lower initial cost, lower annual cost, with Incor' 

The frame is one part of a 
building where work can be 
speeded up without increasing 
costs — and usually at substan- 
tial savings. This principle, es- 
tablished by 20 years' experience, 
is illustrated by buildings at 
Louisiana State University, Ba- 
ton Rouge. In the Field House, 
'Incor' saved 30 days' job over- 
head and one formset. Concrete 
in perfect condition, after 17 
years' service. 

Lower initial cost as well as 
lower annual cost — these are 
key 'Incor' advantages. 

In 1928, Charleston, S. C Museum of Natural History was under- 
pinned to stop settlement. 'Incor' reduced timber requirements by 
75%. Quicker back-fill and faster clean-up of job site reduced 
construction hazards. Recent inspection shows building in excellent 



Structures tike this new, all-concrete 
partment Repair Shop, covering two city 
Long Island City, N. Y., symbolize the ne 
design and construction techniques. The h 
tral arch, with 1 20-f t. clear span, prov 
maximum unobstructed working space. 
Close co-operation between the 
City's Department of Public 

Works, the Engineer and the Con- 
tractor in the planning stage en- 
visaged utmost economy in forms and 
materials. 'Incor' concrete was used in bar- 
rel-arch structures for early stripping, to save 
time waiting for concrete to harden. Even in cool 
weather, safe stripping strengths were obtained 
within 48 hours, expediting construction schedules. 
Here is modern functional design, expressed in 
monolithic concrete, with its incomparable advan- 
tages of fire-safety and low-maintenance. 





Era Widens 


Efficient use of time is the basis of industrial progress. Prac- 
tical application of this principle in line production methods is 
the foundation of America's tremendous productivity. Care- 
fully planned, straight-line operation makes it possible to con- 
vert yesterday's waste and lost-motion into tomorrow's net 

During the past 20 years this principle has spread through- 
out the construction industry. One of the things which made 
this possible was the introduction of 'Incor 1 24-Hour Cement. 
By assuring in 24 hours the strength and durability that for- 
merly required a week's curing or longer, * Incor' has enabled 
designers and builders to cancel out unproductive time wait- 
ing for concrete to harden and improve productive efficiency 
all along the line. 

Each year sees some new utilization of the dependable high 
early strength and faster thorough job curing which are the 
hallmarks of 'Incor concrete. This is the clear implication of 
recent projects shown on the pages next following. Each proj- 
ect illustrates a specific engineering or structural advantage 
which the know-how of designers and builders has brought to 
economical reality. 

The ultimate emphasis is on that word "economical," for 
the salient fact is that design and construction economies ob- 
tained with 4 Incor' have helped broaden the range of concrete 
construction — making it possible to provide the stability and 
fire-safety of concrete at first costs which compare favorably 
with less permanent construction. That is why the Tncor' era 

continues to widen. 




This 13-story reinforced concrete apartment building, 11,500 
sq. ft. per floor, was erected in 37 working days— two floors a 
week. 'Incor' concrete was poured day and night. In 18 to 24 
hours, carpenters were stripping and placing forms for the next 
pour. Good job planning with 'Incor' resulted in a speed record 
for concrete frame construction. Excellent workability produced 
clean surfaces for exposed ceilings and floors. Time was the 
essence on this project— needed living space was obtained in a 
hurry, at low cost per cubic foot. Careful job planning, utiliz- 
ing fast 'Incor' stripping schedules, widens the economical range 
of modern fire-safe construction. 





Six double seaplane hangars at Cedar Point, Md. dramatize the 
adaptability of concrete to modern design. Sweeping 160-ft arches, 
with 3%-in. concrete shell, provide unobstructed space for utmost 
operating efficiency. Each hangar has clear door openings 160 ft. 
wide, 40 ft. high. Forms for projects such as this are expensive, so 
the Contractor's concreting schedule took full advantage of de- 
pendable *Incor' high early strength for earlier stripping with min- 
imum form requirements and maximum form re-use. Here is func- 
tional design, with concrete's advantages of fire-safety and low 
maintenance — built quicker and at lower cost. 



That straight-line methods are just as effective in plant construction 
as they are in plant operation is well illustrated by the Crawford 
Clothes factory, covering an entire city block in Long Island City, 
N. Y. This one- and two-story building is concrete beam-and-girder 
construction, with 20-ft. bays. Estimates showed that the fastest erec- 
tion schedule was possible by using 'Incor' and forming only 15% 
of the area, instead of using three times as many forms for equal 
speed with ordinary methods. 'Incor' saved two form-sets (costing 
$10,880 at 1940 prices). Using a 5.2 bag 'Incor' mix, with water added 
to produce a 5- to 6-inch slump, forms were stripped the second 
morning, and moved horizontally. Result, a fire-safe concrete build- 
ing, ^tailor-made" to fit the owner's requirements. 


BY 40% TO 60% 

Concrete is readily formed into any 
architectural design. Forms are a prin- 
cipal item in concreting cost. Especially 
on modern, large-scale construction, the 
investment in forms runs into substan- 
tial sums. The size of this investment 
is determined by the required job speed 

and by the length of time it takes 
concrete to attain service strength. The 
quicker the concrete can be stripped, 
the faster the forms can be re-used, and 
hence the fewer the form-sets needed. 

Forms filled with 'Incor' concrete one 
day are ready to re-use the next , . . 
one form-set with 'Incor' does the work 
of two or three sets with ordinary con- 
crete . . . more re-uses lowers the cost 
per job. On this huge, all-'Ineor\ girder- 
and-slab structure, the Contractor 
formed only a fraction of the total area 
using each form-set ten times. Forms 
filled with 'Incor* one day, were rolled 
into new position the next — an acre a 
day under roof! 





Multi-million-dollar improvements often used to stand idl< 
for weeks, waiting for concrete to harden. With § Incor\ next 
day after the last concrete is placed, the entire improvement 

can be opened to the public. This 
important 'Incor* advantage is il- 
lustrated by beautiful Cross Coun- 
ty Parkway Bridge, at Fleetwood, 
N. Y.. vital link in Westcheste i 


County's highway system. 
Using Incor' 24-Hour Cement, the Contractor saved 
thousands of dollars on forms and falsework, forming only 
one row of ribs and moving forms sideways. Pe rformano 
on the ribs caused the Contractor to use 'Incor' for the deck 
with further savings on forms and over! ad. The contrac 
carried a $700-a-day penalty, but the job was finished 2 
v ;s before deadline Roadway concrete was placed in cold 
weather: 'Incor' minimized freezing risk, cut cost, sp d 

ob progress — helped give the public earlii use of a vitally 
r I improvement 



Traffic congestion at one of the busiest spots in suburban 
New York was relieved by widening the Saw Mill River 
Parkway from four lanes to six, with center dividing strip, 
for a distance of 2 miles from the terminus of the Henry 
Hudson Parkway to Cross County Parkway. 

Good job planning included the use of 'Incor' 24-Hour 
Cement for closing out paving, access lanes, gas-station 
approaches, and gaps left open for drainage work. 'Incor' 
concrete placed one day was ready for use the next — "Slow 
Down" signs came down days sooner! 

At low temperatures, hardening is retarded— unprotected concrete 
is exposed to freezing risk. Modern heat-protection methods make 
it possible to maintain suitable curing temperatures until the con- 
crete attains service strength and is safe from freezing. Of course 
heat protection costs money but the sooner the concrete is service- 


strong, the less it costs. 'Incor' made year-around concreting a 
practical, economical reality, by providing dependable high early 
strengths with only 24 hours' heat-curing at 70°. This saves sixty 
percent on heating fuel and labor, makes possible summer job 
progress in cold weather. 






Irrigation flume built with 'Incor' 24-Hour Cement 

'Incor' assures durability and 
watertightness in brewery tanks 

Good concrete — properly designed, 
carefully mixed and placed, thoroughly 
cured — is watertight of itself. No spe- 
cial "treatments" are needed! Curing 
is usually where the rub comes — be- 
cause, for watertightness, ordinary 
concrete has to be kept wet 6 to 8 
days, difficult if not impossible under 
today's job conditions. By doing the 
job in 24 to 48 hours, l Incor' assures 
the thorough curing which is so essen- 
tial wherever water or other liquids 
have to be kept in or out. 

Worn-out floors retard plant operation, 
boost labor costs. But factories cannot shut 
down for floor repairs — so 'Incor' 24-Hour 
Cement solves another problem. Place 'In- 
cor' concrete today — new floor is in use 
tomorrow. 'Incor' avoids tying up the floor 
for a week or longer, and by curing thor- 
oughly in the short time concrete can be 
kept wet on most jobs, 'Incor' helps assure 
durable, non-dusting, heavy-duty service. 
Photo, at left, taken Friday night, shows 
worn-out floor — 3 men to a truck. Below, 
new floor, topped with 'Incor' concrete 
after close of business Friday and Satur- 
day, in use early Monday morning- 
man to a truck, instead of three. 






Concrete exposed to weather and wear has to have 
adequate durability as well a ^rength. Durability 
requires a good concrete mix. carefully placed and 
thoroughly cured. Greater curing efficiency of In- 
cor 1 2 4-Hour Cement does the job in 2 4 to 48 
hours — saves five or six days, makes it easier 
and simpler to assure the durability needed for 
resistance to weather and wear On this 600-ft 
long pier for Seatrain Lines, Inc dependable In 
cor' high early strength helped speed cold-weather 
concreting, and faster thorough curing helps pro 
vide the durability needed to resist the element 






Precast concrete masonry units provide at- 
tractive, fire-safe, durable construction at low 
initial and low annual cost. Precast concrete 
pipe and piling provide equally important 
advantages in their particular fields of use. 
'Incor' quickly earned an important place in 
concrete products' manufacture, through in- 
creased plant efficiency — faster output and 
turnover, improved quality. These advan- 
tages facilitated the application of the precast 
principle over a steadily wider range. Hollow, 
lightweight floor and ceiling slabs . . . attrac- 

tive lighting poles . . . pile points for large- 
scale construction, such as Stuyvesant Town 
in New York City — these are only a few of 
the many directions in which modern pr< 
casting is spreading. This is practical prefab- 
rication at its economical best — line-produc- 
tion methods in construction. 



In 110 well-designed, garden-type apart- 
ment buildings for United Nations per- 
sonnel at Jamaica, L. L, floors are rein- 
forced concrete slabs, precast at the job in 
115 'Incor* concrete molds. Ribs in floor 
slabs, running in two directions, share the 
load — the floor system averages only 2 T / 2 
in, thick, including beams, slabs and gir- 
ders, and uses only about half as much 
concrete as conventional construction. 'In- 
cor' slabs were lifted the day after pour- 
ing, ready for lowering onto concrete 
foundations and walls. This method pro- 
vides the stability, fire-safety and low up- 
keep of good concrete at minimum cost — 
has great possibilities for industrial as well 
as residence buildings. 

Modern designing skill and the imaginative use of dependable high early 
strength are steadily widening the horizons of the 'Incof* Era. s: Reg. us. Pat off. 


■■ rrnrlfiTB Qt 

For the Designer and Builde 
Body of Trustworthy Facts 


To help Designers and Builders obtain fullest advantage of the prop- 
erties of 'Incor' and other Lone Star Cements, the Lone Star Concrete 
Research Laboratories provide a steady flow of essential information 
covering every principal phase of concrete and its use in the field. 
This information is made conveniently available, in Service Books 
and in the form of specific data to meet engineering and concreting 
problems as they arise. It is practical information which adds up to 
a comprehensive, trustworthy body of facts at the disposal of Engi- 
neers, Architects, Contractors and Material Suppliers. 



The Ultimate Equation 

A business, like an individual, has a personality with its 
own well-defined characteristics. In a business these charac- 
teristics are determined by basic policies — self-imposed rules 
for the conduct of the business. From its inception at the turn 
of the century, the Lone Star Cement Corporation has oper- 
ated under two cardinal principles : 

(1) To make the best possible product; 

(2) To treat every customer as though both the 
Buyer and the Seller were members of the same 

We try to square everything we do against these two key ob- 
jectives. The twentieth anniversary of 'Incor' 24-Hour Cement 

is as good a time as any to measure accomplishment against 

The ultimate test of quality is performance, and on this 
score the record of 'Incor' and the other Lone Star Cements 
must speak for itself. 

On the second point — which of course is simply a practical, 
working definition of the overworked word 'service' — the rec- 
ord must also speak for itself. 

What we have sought to do is summed up in these conclud- 
ing pages. It is for the Designer and Builder, the Dealer, Ready- 
Mix Operator and Products Manufacturer, the Owner and the 
general public, to judge how closely we have come to fulfilling 

these objectives. 

Actions rather than words — that is the ultimate equation in 
earning and holding favorable public opinion. 



For the Dealer ... A Broader Market 

Two decades now cl ^rly demonstrate that 'Incor' 24-Hour Cement 
has added another string to the Dealer's bow, making it possible for 
him to broaden the base of his cement business by offering to his 
ustomers the time-saving advantages of concrete placed one day and 
1 use the next — of better concrete, too. because 'Incor' cures thor- 
oughly in the short time it is possible to keep concrete wet on most 
jobs, small or large. 


For the 




'Incor' opened a new range of possibilities for 
the application of construction know-how. 
One set of forms with k Incor' produces the 
same job speed as two or three form-se'vC with 
ordinary cement. Forms are safely stripped 
in 24 hours ... no reshoring to impede brick- 
layers, carpenters, plumbers and electricians. 
Jobs can be planned more efficiently — labor 
costs are reduced. Fewer days on the job . . . 
fixed overhead charges lowered. Equipment 
available sooner for the next job. Winter 
work expedited . . . heat-protection costs re- 
duced at least a half. Each passing year sees 
some further advance in the practical appli- 
cation of 4 Incor' performance. 

For the Products Plant... A Four-Way Advantage 

Two decades of experience show that Incor' simplifies produc- 
tion, cuts costs and increa s profits in the Products Plant. 
Specifically 1) Quick rc-use cuts form requirements in I If 
or doubles production with existing forms or pallet (2) Plast: 
incor' mixes speed production: (3) 'Incor' units, thoroughly 
cured, are ready for handling days sooner; (4) Deliveries ar 
maintained with half or third the usual stock-pile. 


For the Ready-Mix Operator... 

An Added Service 

A Ready-Mix Plant represents a substantial investment. Profit- 
able operation depends upon volume and turnover. Today the 
Ready-Mix Operator knows that when a customer asks for 
high-early-strength concrete, he has a definite reason in mind 
job speed, form saving, winter economies, assured water-tight- 
ness. How to meet this demand? Many Operators find 'Incor' 
is the answer — because America's FIRST high early strength 
Portland cement, backed by 20 years' outstanding performance, 
has earned the confidence of cement users everywhere. Wide 
"acceptance" of 4 Incor\ as the standard of quality, is a decided 

advantage to the Operator. 



To serve the convenience of Dealer and User, bagged 
'Incor' is shipped in carloads or in mixed cars with the 

other Lone Star Cements. 









■ Lu/Vt 







Modern Hopper Cars expedite cement shipment to, and 
handling at, Ready-Mix Plants, Products Plants and targe 

construction projects. 

Air-activated Containers move from mill to job, by rail and 
water. Tidewater location of key Lone Star Mills adds 

further flexibility to Lone Star service- 

For the Building Industry • . . Service to Fit Every Need 

Carefully d igned to fit the convenience of Dealers and Users, flexiblr Loac 
Star service receives the utmost care and attention, all along the line, every day 
in tin year — because wc realize that a reputation for dependability has to I 
rned by day-to-day performance. 




T O 

F I T 



• Progress in building construction calls for parallel progress in cement per- 
formance. Lone Star Cements meet the needs of advancing building techniques. 
The record of 'Incor* 24-Hour Cement in its own wide field of usefulness ex- 
presses the predominant quality characteristics of the family of which it is a 
part. Rigid quality control and continuing product research assure the same 

high standards of performance in all the Lone Star Cements, 

now and in the years ahead. 











Printed in U.S.A. — January, 1948 

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